Rash on left breast also pain

I am 34 years old my grandmother died from breast cancer at a young age. I have just been to the doctors with a rash on my left breast which I have had for two weeks. recently it has become very painful to touch around the nipple area and surounding area. I have also had shooting pains through it. The doctor examined my breast and could feel no lumps although it hurt, and seems to think its eczma (eczema) related but this does not explain the pain.He has given me some cream and told me to come back in aweek if no change.

[Cleveland Clinic]

Dear camelily:  Skin on the breast is like skin anywhere on the body and is subject to a variety of abnormalities, including rashes – some of which could be painful.  Most breast cancer is not painful. However, some types of breast cancer can mimic an infection or other skin problems in the breast. Without evaluation, it is not possible for us to speculate on what this might be.  If you remain concerned, you could seek a second opinion from either a breast specialist or a dermatologist.